Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Attach U gauge to inlet pressure test point
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow self-check to complete.
Allow fan to run and ignition sequence to commence.
Observe the U-gauge. The inlet pressure should remain at or above 20mbar (37mb for LPG) throughout boiler operation.
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Allow fan to run and ignition sequence to commence.
Observe the U-gauge. The inlet pressure should remain at or above 20mbar (37mb for LPG) throughout boiler operation.
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Isolate as per TOPs P4
and refit as necessary